As you become familiar with your new room in The Tower, you might notice a guitar in the corner of the room. You can interact with the instrument to play a note, but it's obvious that Kyle Crane never learned how to play one. Luckily, there's time to address that oversight! Play through the main missions until you need to infiltrate a school with Jade. Make sure to search every classroom thoroughly, and you'll find another guitar, along with a lesson book! Return to the tower and interact with the guitar again. Now you'll be able to play short tune.